Windows 7 Ultimate 64 Bit Highly Compressed 928 Mb

If you genuinely need a smaller Windows 7 ISO for legacy systems, consider using Microsoft’s official tools to create a reduced image:

: Highly compressed files might sometimes cause issues during installation or operation due to the way they've been packaged. This could lead to instability or failure to install properly. windows 7 ultimate 64 bit highly compressed 928 mb